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Audio Drop out in FCP
Occasionally, I will experience some audio drop out when recording my sequence to tape. Yesterday I dubbed a program that was 58:30 in duration, and the sound dropped out 5 times.
I had this issue earlier in the year, and it when away. Unfortunately it is back and I need help making it go away again.
Does anyone on have any advice to solve some issue?
My system is a Dual 2GHz G5, 1.5GB RAM, and FCP 5.0.4. My firewire drive is a 250GB Lacie.
Thanks in advance.
film615
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2 Replies
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There is a function in FCP that is often overlooked… and it can help with many audio and video “skipping”, “sticking” and “missing” problems.
You should “Mixdown” the Audio for playback before you dub out of FCP, or during the edit, if you have audio/video stuttering, drop-outs, sync-slippage, or freezes.
NOTE: Mixdown has even been demonstrated to help with slipping, skipping problems (or “missing” audio clips) for files being EXPORTED as QT (or similar) files out of FCP.
First, SELECT ALL of your audio tracks (highlight them) on the timeline, then:
Sequence Menu > Render Only > Mixdown.
You should see a dialog box telling you its rendering.
It might seem to make little sense that “Mixing down” even simple audio tracks will “fix” complex video “freezes” or random audio dropouts to tape or export, but it CAN.
NOTE: It does not matter of you only have one audio track, if there are random freezes during output, you should try the Mixdown.
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Are you monitoring the audio through your deck? If so, look at the FCP audio meters. Are they registering the dropouts as well? If not, then your likely cause is a tiny glitch in your video. These glitches may not even be visible, but they can wreak havoc with the audio going out the firewire. The actual audio on the hard drive is unaffected, so if you’re monitoring through your computer, you’ll hear it. Try replacing the video at the affected segment with a cut-away and see if you get your audio back.
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